1st SPL Collaboration Meeting

Europe/Zurich
AT Auditorium (CERN)

AT Auditorium

CERN

Roland Garoby (CERN)
Description
MEETING GOALS: - to review specifications and technical choices + to set deadlines for decision on pending questions, - to define the precise contribution of each partner (deliverables and planning) and the interactions between partners (names of persons in charge, exchange of information/hardware, planning of meetings, …), - to propose how to demonstrate 25 MV/m (Beta=1) and 19 MV/m (Beta =0.65) before mid-2011 - to list untreated subjects and collect suggestions for addressing them, - to organize the collaboration (Constitution?), - to define the dates of the main meetings until end of 2009.
Minutes
Participants
  • ALBERTO PEREZ
  • Amos Dexter
  • DANIEL GANUZA
  • Daniel Valuch
  • Davide Tommasini
  • Edmond CIAPALA
  • Francisco Javier Bermejo
  • Frank Gerigk
  • Giorgio Apollinari
  • Guillaume Devanz
  • Guillaume Olry
  • Hans-Walter Glock
  • Hervé Saugnac
  • Ilan Ben-Zvi
  • James Strait
  • Joachim Tuckmantel
  • Josu Eguía
  • Juan Luis Fernandez-Hernando
  • Leonel Ferreira
  • Luis Uriarte
  • Marcel Schuh
  • Mats Lindroos
  • Miguel Angel Carrera
  • Mikel Larrañaga
  • Mohammad ESHRAQI
  • Montesinos Eric
  • Nuria Catalan Lasheras
  • olivier brunner
  • Paolo Chiggiato
  • Parma Vittorio
  • Patxi DUTHIL
  • Philippe Baudrenghien
  • Pierre MAESEN
  • Rafael Enparantza
  • Rama Calaga
  • Rick Baartman
  • Robert Laxdal
  • Roland Garoby
  • Romuald Duperrier
  • Sergio Calatroni
  • Slawomir Wronka
  • Stephane CHEL
  • Steve Peggs
  • Sylvain WEISZ
  • Wolfgang Hofle
  • Wolfgang Weingarten
  • Thursday, 11 December
    • 09:00 10:00
      Plenary session 1: introduction AT Auditorium

      AT Auditorium

      CERN

      • 09:00
        Welcome 10m
        Speaker: Lyn Evans
      • 09:10
        SPL study and meeting goals 20m
        Speaker: Roland garoby
        Slides
      • 09:30
        SPL specifications and design choices 30m
        Speaker: Frank Gerigk
        Slides
    • 10:00 10:20
      Coffee break AT Auditorium

      AT Auditorium

      CERN

    • 10:20 12:30
      Plenary session 2: planned contributions to the SPL AT Auditorium

      AT Auditorium

      CERN

      • 10:20
        CEA (Saclay) plans 20m
        Speaker: Stephane Chel (Centre d'Etudes de Saclay (CEA-Saclay))
        Slides
      • 10:40
        IN2P3 (Orsay) plans 20m
        Speaker: Patxi Duthil (IPNO - IN2P3 - CNRS)
        Slides
      • 11:00
        TRIUMF plans 20m
        Speakers: Rick Baartman, Robert Laxdal
        Slides
      • 11:20
        Cockcroft Institute plans 20m
        Speaker: Amos Dexter
        Slides
      • 11:40
        Stony Brook / BNL plans 20m
        Speakers: Ilan Ben-Zvi, Rama Buchi Rao Calaga
        Slides
      • 12:00
        Explanation/Discussion on the mandates of the working groups 30m
        Speaker: Roland garoby
        Slides
    • 12:30 14:00
      Lunch -

      -

      CERN

    • 14:00 15:45
      Working Group 1 - Session 1 30/2-005

      30/2-005

      CERN

      15
      Show room on map

      4 rooms are available for the 4 workings groups:
      - AT auditorium
      - 30-2-005
      - 112-R-028
      - 112-R-034

      • 14:00
        RF Power Distribution for SPL - Introduction 15m
        Speaker: Edmond Ciapala (CERN)
        Slides
      • 14:15
        RF Power Distribution = System Layout and Components 30m
        Speaker: DANIEL VALUCH (CERN)
        Slides
      • 14:45
        Cockroft Instutute - HP RF Expertise and Areas of Interest 20m
        Speaker: Amos Dexter
    • 14:00 15:45
      Working Group 2 - Session 1 (with WG 4) AT Auditorium

      AT Auditorium

      CERN

      • 14:00
        On the optimum choice of the geometric beta of the sc cavities 15m
        Make recommendation on geometrical beta based on beam dynamics issues, in view of the impact on power dissipation, max. gradient, and required equipment (high pressure water rinsing, electropolishing, ...)
        Speaker: Frank Gerigk
        Slides
      • 14:15
        Discussion on cavity beta and other design issues 15m
        Other design issues: Optimize cavity geometry w.r.t. peak fields, multipactor, robustness against Lorentz-force detuning, tunability, HOM spectra, cross-talk between cavities (from HOM or electron propagation, ...) Identify potential contributers and deadlines
      • 14:30
        Do we need HOM dampers on SC cavities in p linacs? 20m
        Speaker: Joachim Tuckmantel (CERN)
        Slides
      • 14:50
        HOM studies for TESLA 20m
        Speaker: Hans-Walter Glock
        Slides
      • 15:10
        HOM damping on sc cavities 20m
        Speaker: Joachim Tuckmantel
        Slides
      • 15:30
        Discussion HOM coupler 15m
        Possible issues: - Acquire results on HOM impedances, beam instability studies, and interaction between cavities via HOM propagation - Define strategy on HOM coupler design, prototyping and testing - Design HOM coupler (antenna vs. beam tube absorber), and cooling layout - Perform multipactor studies - Identify manufacture capacities - Identify required equipment for HOM coupler tests (do we need room temperature model cavity?) Identify potential contributers and deadlines
    • 14:00 15:45
      Working Group 3 - Session 1 112/R-028

      112/R-028

      CERN

      112-R-028
      38
      Show room on map
      agenda
    • 14:00 15:45
      Working Group 4 - Session 1 (together with WG2) AT Auditorium

      AT Auditorium

      CERN

      Beam dynamics

    • 15:45 16:00
      Coffee break AT Auditorium

      AT Auditorium

      CERN

    • 16:00 18:10
      Working Group 1 - Session 2 30/2-005

      30/2-005

      CERN

      15
      Show room on map
      • 16:00
        Klystron Modulators for the LP-SPL and for the HP-SPL 40m
        Speaker: Carlos De Almeida Martins (CERN)
        Slides
      • 16:40
        Review of Specifications and Technical Choices - Part 1 40m
        Speaker: Edmond Ciapala (CERN)
        Slides
      • 17:20
        Review of System Specifications and tecnical choices Pt 2 40m
        Slides
    • 16:00 17:30
      Working Group 2 - Session 2 AT Auditorium

      AT Auditorium

      CERN

      • 16:00
        Processing of cavity to obtain design performance 20m
        - Define strategy to reach full performance (25 MV/m for beta = 1 cavities) for a fully equipped prototype cryomodule - Identify required equipment (e.g. electro-polishing, HPWR) and what is missing
        Speaker: Sergio Calatroni (CERN)
      • 16:20
        RF test of individual cavities 20m
        Identify need of re-processing and re-testing, the equipment required and what is missing
        Speaker: Pierre Maesen (CERN)
        Slides
      • 16:40
        Discussion session 20m
        Potential manufacturers and required equipment - Identify potential Labs with manufacturing competence (in house or with industry) - Identify potential commercial manufacturers - Agree on manufacturing and processing sequence - Identify required equipment (e.g. field flatness, frequency tuning) and what equipment is missing Diagnostic equipment - Define required equipment (on-line: Temperature mapping and other diagnostics methods in super-fluid helium) and what is missing - Define required equipment (off-line: Optical inspection system) and what is missing Identify potential contributers and deadlines
    • 16:00 17:30
      Working Group 3 - Session 2 112/R-028

      112/R-028

      CERN

      38
      Show room on map
      • 16:00
        Possible quadrupole solutions (D.Tommasini, CERN) 20m
        Slides
      • 16:20
        Discussion 1h 10m
        - Type of coupler, integration needs, mechanical interface - Type of tuner, integration needs, interface to cavity helium vessel - Magnetic shielding design & integration (internal? external?) - Alignment requirements and assembly principles - cryogenics distribution architecture: general requirements and possible schemes, slope, H/W related issues (ex. Technical Service Modules) - Table of Work Packages -AOB
    • 16:00 17:30
      Working group 4 - Session 2 112/R-034

      112/R-034

      CERN

      15
      Show room on map
      • 16:00
        Beam dynamics in the SPL 15m 112/R-034

        112/R-034

        CERN

        15
        Show room on map
        Speaker: Mohammad Eshraqi
        Slides
      • 16:15
        Discussion on beam dynamics in the SPL 15m 112/2-023

        112/2-023

        CERN

        15
        Show room on map
      • 16:30
        H- beam splitting for EURISOL targets 15m 112/R-034

        112/R-034

        CERN

        15
        Show room on map
        Speaker: Mats Lindroos
        Slides
      • 16:45
        Discussion on H- beam splitting for EURISOL 15m 112/R-034

        112/R-034

        CERN

        15
        Show room on map
      • 17:00
        Discussion: impact of cavity performance on beam dynamics 15m 112/R-034

        112/R-034

        CERN

        15
        Show room on map
      • 17:15
        Discussion: H- stripping in transfer line via blackbody radiation 15m 112/R-034

        112/R-034

        CERN

        15
        Show room on map
    • 19:00 21:30
      Collaboration dinner Restaurant 2 - DSR - Bldg 504

      Restaurant 2 - DSR - Bldg 504

      CERN

      Restaurant 2 - DSR - Bldg 504
  • Friday, 12 December
    • 08:30 09:30
      Plenary session 3: discussion AT Auditorium

      AT Auditorium

      CERN

      • 08:30
        Organisation of the collaboration (with discussion) 30m
        Speaker: Roland garoby
        Slides
      • 09:00
        Preliminary feedback from the Working Groups 30m
    • 09:30 09:50
      Coffee Break AT Auditorium

      AT Auditorium

      CERN

    • 09:50 11:00
      Interactions between Working Groups AT Auditorium

      AT Auditorium

      CERN

    • 11:00 12:30
      Working Group 1 - Session 3 30/7-012

      30/7-012

      CERN

      30
      Show room on map
      • 11:00
        Definition of Future Work and Workpackages 10m
        Speaker: Edmond Ciapala (CERN)
        Slides
      • 11:20
        PreliminaryWG1 20m
        Speaker: Edmond Ciapala (CERN)
        Slides
    • 11:00 12:30
      Working Group 2 - Session 3: (with WG 1 & 3) AT Auditorium

      AT Auditorium

      CERN

      • 11:00
        Assembly and test of fully equipped cryomodule 15m
        - Identify required equipment, monitoring devices and what is missing - Address issue whether we need to simulate the slope of the tunnel
        Speaker: Pierre Maesen (CERN)
        Slides
      • 11:15
        High power RF coupler - CEA-Saclay experience 15m
        Speaker: guillaume devanz
      • 11:30
        High power RF coupler - CERN experience 15m
        Speaker: Eric Montesinos (CERN)
        Slides
      • 11:45
        On the choice of the frequency tuner 15m
        Speaker: guillaume devanz
      • 12:00
        Discussion on addressed topics and on integration issues between WG1, 2 and 3 30m
        Power coupler: - Define the conceptual design, the layout of cooling (including thermal loads) and diagnostical tools, choice of materials (waveguide, window) - Perform multipactor studies, assess methods of multipactor suppression and elaborate coating techniques - Acquire data on the secondary emission coefficient (SEC) of materials involved - Identify manufacture and conditioning facilities - Identify required equipment for coating and conditioning Frequency tuner - Perform by computer simulation Lorentz-force detuning studies of cavity design and confirm by measurement - Develop and test slow tuner; integrate the design into that of the cryomodule - Develop and test fast tuner; integrate the design into that of the cryomodule - Develop scenarios for failing cavities (detuning) Magnetic shielding - Design by computer simulation or analytically the magnetic shielding; manufacture it Identify potential contributers and deadlines
    • 11:00 12:30
      Working Group 3 - Session 3: Common session with WG1 and WG2 112/R-034

      112/R-034

      CERN

      112-R-034
      15
      Show room on map
    • 11:00 12:30
      Working Group 4 - Session 3 112/2-023

      112/2-023

      CERN

      15
      Show room on map
      • 11:00
        Collimation for Linac4 15m
        Speaker: Juan FERNANDEZ-HERNANDO (STFC)
        Slides
      • 11:15
        Discussion on collimation for Linac4 15m
      • 11:30
        Collimation and radiation protection, experience at the Soltan Institute 15m
        Speaker: Slawomir Wronka (Soltan Institute)
        Slides
      • 11:45
        Discussion on collimation/radiation studies at the Soltan institute 15m
      • 12:00
        Discussion on task splitting between Cockroft and Soltan Institute 15m
      • 12:15
        Discussion: longitudinal momentum collimation 15m
    • 12:30 14:00
      Lunch - (-)

      -

      -

    • 14:00 15:45
      Write-up of summary & recommendations of Working Group 1 30/4-040

      30/4-040

      CERN

      8
      Show room on map
    • 14:00 15:45
      Write-up of summary & recommendations of Working Group 2 AT Auditorium

      AT Auditorium

      CERN

    • 14:00 15:45
      Write-up of summary & recommendations of Working Group 3 112/R-034

      112/R-034

      CERN

      15
      Show room on map
    • 14:00 15:45
      Write-up of summary & recommendations of Working Group 4 112/2-023

      112/2-023

      CERN

      15
      Show room on map
    • 15:45 16:00
      Coffee break AT Auditorium

      AT Auditorium

      CERN

    • 16:00 18:00
      Plenary session 4: summaries and recommendations AT Auditorium

      AT Auditorium

      CERN

      • 16:00
        Summary & recommendations - Working Group 1 20m
        Speakers: Amos Dexter, Edmond Ciapala (CERN)
        Slides
      • 16:20
        Summary & recommendations - Working Group 2 20m
        Speakers: Stephane Chel (Centre d'Etudes de Saclay (CEA-Saclay)), Wolfgang Weingarten (CERN)
        Slides
      • 16:40
        Summary & recommendations - Working Group 3 20m
        Speakers: Patxi DUTHIL (IPNO - IN2P3 - CNRS), Vittorio Parma (CERN)
        Slides
      • 17:00
        Summary & recommendations - Working Group 4 20m
        Speakers: Frank Gerigk, Rick Baartman
        Slides
      • 17:20
        Summary on organisation and planning of the collaboration 40m
        Speaker: Roland garoby
        Slides
    • 21:30 21:45
      WG 1: High power RF equipment (RF distribution, amplitude/phase modulators, circulators, loads…) AT Auditorium

      AT Auditorium

      CERN

    • 21:30 21:45
      WG 2: Cavity design (geometric beta, high power coupler, HOM damper/coupler, tuner …) and construction (Manufacturers, processing facilities, low power RF tests …) AT Auditorium

      AT Auditorium

      CERN

    • 21:30 21:45
      WG 3: Cryomodule and integration (Design, construction, assembly…) AT Auditorium

      AT Auditorium

      CERN

    • 21:30 21:45
      WG 4: Beam dynamics and loss management (Collective effects, H- stripping, collimation …) AT Auditorium

      AT Auditorium

      CERN